[publisher not identified], [date of publication not identified]
Buku Teks
Trimitra Yasa, 1989
Buku Teks
Palte, J.G.L.
Bussum : Romen, 1975
Buku Teks
Abdul Latief, author
1990
UI - Skripsi (Membership)
Voges, Daphne Desiree, author
Universitas Indonesia, 2006
UI - Tesis (Membership)